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Plunger Pump 804024740 XCMG Wheel loader

Plunger Pump 804024740 XCMG Wheel loader

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Product Detail

XCMG 804024740 – Plunger Pump (Hydraulic Axial Piston Pump) for Wheel Loaders

The XCMG 804024740 is a genuine high-pressure axial piston pump (often referred to as a plunger pump or main hydraulic pump) specifically designed for the main hydraulic system of XCMG wheel loaders. As the heart of the loader‘s hydraulic system, this variable displacement pump draws oil from the hydraulic tank and delivers high-pressure flow to the main control valve, which then directs fluid to critical functions including boom lift, bucket tilt, steering, brake charging, and auxiliary hydraulic circuits. Manufactured from high-strength cast iron and forged steel, precision‑machined with hardened cylinder blocks, pistons, and valve plates, the 804024740 is engineered for high volumetric efficiency, low pulsation, and reliable performance under the heavy shock loads and continuous duty cycles encountered in construction, quarrying, mining, and material handling applications.

  • XCMG ZL50G, ZL50GN, ZL50GV Wheel Loaders
  • XCMG LW500K, LW500FN, LW600K, LW800K Wheel Loaders
  • XCMG XC958, XC968, XC9 Series Wheel Loaders
  • XCMG LW300K, LW300KN, LW350KN Wheel Loaders (verify displacement and mounting)
  • Other XCMG wheel loaders equipped with variable displacement axial piston pump systems
CategoryPart NumberDescription / Original Number
Main Component804024740Plunger pump (axial piston pump / main hydraulic pump)
Pump (Alternate / Series)804024741Plunger pump – alternate variant (verify displacement and control type)
Pump (Tandem – Second Section)804024742Second pump section (if original is a tandem pump configuration)
Pump (Tandem – Complete Assembly)804024743Complete tandem pump assembly (both sections)
Steering Pump (Gear Type)803072822Steering hydraulic pump (separate gear pump – used with axial piston main pump systems)
Pilot Pump (Gear – if separate)803004063Pilot gear pump (supplies pilot control circuit)
Pump Drive Adapter / Bell Housing804024744Pump mounting adapter (transmission / torque converter to pump)
Pump Drive Coupling (Flexible)804024745Flexible coupling (engine/transmission PTO to pump shaft)
Coupling Rubber Element (Spider)804024746Rubber spider insert for flexible coupling
Pump Mounting Bolt Kit279500128High-strength hex bolt set (M12×35 or M14×40 – grade 10.9)
Lock Washer (Pump Mounting)275300096Spring lock washer (M12 / M14)
Mounting O‑ring (Pump Flange)803164037O‑ring (for SAE flange mount – size dependent on pump model)
Suction Hose (Tank to Pump – Low Pressure)860115388Low-pressure hydraulic suction hose
Pressure Hose (Pump to Main Valve – High Pressure)860115389High-pressure delivery hose
High‑Pressure Steel Tube (Pump to Valve)252300477Distributor valve inlet steel pipe (rigid hydraulic supply line)
Case Drain Hose (Return to Tank)860115390Low-pressure case drain return hose
Banjo Bolt (Pressure Port)860167280Hollow bolt for banjo connection (if banjo fitting is used)
Copper Washer (Banjo Seal – Pack of 10)803164120Sealing washer for banjo bolts
Hydraulic Tank (Reservoir)803200100Main hydraulic oil reservoir
Suction Strainer (In‑tank)803100040Suction strainer / filter (inside hydraulic tank)
Return Filter Assembly (Spin‑on)803100039Return line filter assembly
Return Filter Element (10 micron)803100041Replacement filter element
Pilot Return Filter (if separate)803100042Pilot circuit return filter
Hydraulic Oil Cooler803107100Hydraulic oil cooler assembly (air or water cooled)
Oil Cooler Bypass Valve803107101Thermal bypass valve (cold start bypass)
Main Control Valve (Distributor)803104500Pilot‑operated main hydraulic valve assembly
Inlet Section (Main Control Valve)803104501Inlet cover with pump port
Working Section (Boom Spool)803104502Boom spool section
Working Section (Bucket Spool)803104503Bucket spool / auxiliary section
Outlet Section (Return Cover)803104504Outlet cover (return to tank)
Main System Relief Valve (Cartridge)803104505Main pressure relief valve
Port Relief Valve (Boom Circuit)803104506Boom circuit relief / cushion valve
Port Relief Valve (Bucket Circuit)803104507Bucket circuit relief valve
Load Holding / Anti‑Drop Valve (Boom)803104508Counterbalance valve for boom cylinders
Steering Priority Valve (Flow Divider)803104200Flow divider (steering priority – sends oil to steering circuit first)
Pilot Control Valve (Joystick Base)860633853Proportional pilot valve (under cab floor)
Joystick Handle (Pilot Control)860633850Electro‑hydraulic joystick with thumb rollers and switches
Pilot Accumulator (Emergency Lower)803089849Pilot pressure accumulator (emergency boom lower)
Pilot Hose (Boom Raise)860115390Pilot signal hose – boom raise
Pilot Hose (Boom Lower)860115391Pilot signal hose – boom lower
Pilot Hose (Bucket Dump)860115392Pilot signal hose – bucket dump
Pilot Hose (Bucket Curl)860115393Pilot signal hose – bucket curl
Pilot Filter (Return Line)803100042Pilot circuit return filter
Boom Lift Cylinder (Left)803081218Left boom cylinder
Boom Lift Cylinder (Right)803081219Right boom cylinder
Boom Cylinder Seal Repair Kit803081218SKSeal kit (piston seals, rod seal, wiper, O‑rings) – left / right
Bucket Tilt Cylinder803081220Bucket cylinder
Bucket Cylinder Seal Repair Kit803081220SKSeal kit for bucket cylinder
Steering Cylinder (Left)803081210Left steering cylinder
Steering Cylinder (Right)803081211Right steering cylinder
Steering Gear (Orbital Control Unit)803089848Full‑hydraulic steering control unit
Steering Cylinder Pin (Mounting)275200145Pivot pin for steering cylinder
Steering Cylinder Pin Retaining Nut275200118Self‑locking nut for steering cylinder pin
Brake Master Cylinder860167266Brake master cylinder assembly
Brake Booster (Air / Hydraulic)860167268Air‑over‑hydraulic brake booster
Brake Accumulator803089849Emergency brake hydraulic accumulator
Brake Caliper Seal Kit860167251Brake caliper repair seal kit
Brake Caliper (Front Left)860167252Front left brake caliper
Brake Caliper (Front Right)860167253Front right brake caliper
Brake Caliper (Rear Left)860167254Rear left brake caliper
Brake Caliper (Rear Right)860167255Rear right brake caliper
Brake Pad Set (Front)860167256Friction pad set – front axle
Brake Pad Set (Rear)860167257Friction pad set – rear axle
Brake Disc (Rotor – Front)860167259Ventilated brake disc – front
Brake Disc (Rotor – Rear)860167260Ventilated brake disc – rear
Brake Hose (Flexible – Front)860115388Flexible brake hose (front axle)
Brake Hose (Flexible – Rear)860115389Flexible brake hose (rear axle)
Brake Fluid (DOT 4 – 1L / 5L)860115450Genuine XCMG brake fluid
Parking Brake Caliper (Transmission Output)860167272Spring‑applied parking brake caliper
Parking Brake Switch (Cab)803604013Dash parking brake warning switch
Front Axle Assembly (Complete)250300731Front drive axle
Rear Axle Assembly (Complete)250300732Rear drive axle
Front Axle Input Flange (Pinion Yoke)251900342Pinion flange (drive shaft to axle connection)
Axle Pinion Oil Seal (Double‑Lip)860106167Pinion seal
Axle Shaft (Left Front)251500307Left front axle shaft
Axle Shaft (Right Front)251500308Right front axle shaft
Axle Shaft (Left Rear)251500309Left rear axle shaft
Axle Shaft (Right Rear)251500310Right rear axle shaft
Differential Assembly (Front)275102500Front differential carrier assembly
Differential Assembly (Rear)275102501Rear differential carrier
Half Shaft Gear (Differential Side Gear)275102466Differential side gear (mates with axle shaft)
Sun Gear (Planetary Final Drive)275100138Sun gear shaft
Planet Gear (Planetary Final Drive – Set of 3)250200646Planet gear
Wheel Hub (Front)252000421Front wheel hub assembly
Wheel Hub (Rear)252000422Rear wheel hub assembly
Wheel Hub Tapered Roller Bearing (Inner)271400216Inner wheel bearing
Wheel Hub Tapered Roller Bearing (Outer)271400218Outer wheel bearing
Wheel Hub Oil Seal (Inner)272200085Wheel hub seal (keeps gear oil in hub)
Wheel Flange251900342Wheel mounting flange (bolted to hub)
Wheel Stud Bolt279500128M22×1.5 wheel stud (set of 10)
Wheel Nut (Conical Seat)250200664Hex wheel nut for wheel studs
Transmission Assembly (Powershift)Transmission (model dependent on loader)
Torque ConverterYJ315 seriesTorque converter assembly
Transmission Oil Pump803009979Gear pump mounted on transmission
Transmission Filter (Spin‑on)803100039Transmission return line filter
Transmission Oil CoolerTransmission oil cooler circuit
Front Transmission Shaft (Propeller Shaft)251805363Front drive shaft (transmission to front axle)
Rear Transmission Shaft251805364Rear drive shaft (transmission to rear axle)
U‑Joint Cross & Bearing Kit (Drive Shaft)251805370Universal joint repair kit
Engine AssemblyDiesel engine (Weichai / Cummins / Deutz – loader dependent)
Engine Water Pump860148431Engine coolant pump
Radiator Water Tank (Engine Cooling)860148427Engine cooling radiator assembly
Radiator Cap (Pressure – 0.5–0.9 bar)860148428Pressure radiator cap
Radiator Hose (Upper)860115430Upper coolant hose (engine to radiator)
Radiator Hose (Lower)860115431Lower coolant hose (radiator to water pump)
Coolant Expansion Tank (Overflow / Degas)860148429Coolant reservoir / expansion bottle
Cooling Fan (Suction)860148434Engine cooling fan (plastic or metal)
Fan Shroud (Air Guide)860148435Radiator fan shroud
Fan Belt (Serpentine)860148437Drive belt (alternator / fan / water pump)
Fan Belt Tensioner (Automatic)860148438Automatic belt tensioner
Hydraulic Oil Cooler (Stacked with Radiator)860148440Hydraulic oil cooler (integrated with radiator core)
Charge Air Cooler (CAC / Intercooler)860148441Turbocharger intercooler
Alternator (28V / 120A)Brushless alternator
Starter Motor (24V)Heavy‑duty starter
Battery (12V / 24V system)Two 12V batteries (connected in series)
Battery Cable (Positive – Heavy Duty)Red battery cable (35 mm² or 50 mm²)
Battery Cable (Negative – Chassis Ground)Black battery ground cable
Battery Isolator Switch (Master Disconnect)252911393Master power disconnect switch
Fuse Kit (5A – 30A – Assorted Blade Fuses)803682279 – 803682283Blade fuses (5A, 10A, 15A, 20A, 30A)
Relay (General Purpose – 24V, 4‑pin / 5‑pin)803604013ISO mini relay
Control Button (Horn / Vibration / Dashboard)803604621Dash push button
Harness Connector (Deutsch – Receptacle / Pin)803399778Electrical connector (Deutsch DT series)
Coolant Temperature SensorWDG1371Water temperature sender
Dashboard Display / Instrument Cluster803604622LCD or analog display (speed, temp, fuel, warnings)
Headlight Assembly (Left – LED Work Light)860134405Left front LED work light
Headlight Assembly (Right – LED Work Light)860134406Right front LED work light
Headlight Cover (Left – Lens / Housing Cover)252911337Left headlight cover / lens cover
Headlight Cover (Right)252911338Right headlight cover
Horn (Electric – High Tone)803688413Warning horn – high frequency
Horn (Electric – Low Tone)803688414Warning horn – low frequency
Horn Relay803604013Relay for horn circuit
Reverse Alarm (Backup Buzzer – 107 dB)803688433Audible reverse alarm
Grease Fitting (Straight – Lubrication Nipple, M10×1)803164200Standard grease nipple
Grease Fitting (90° – Angled, M10×1)80316420190° angled grease nipple
Grease Fitting Cap (Rubber Dust Cover)803164202Protective cap for grease nipple
O‑ring (General Purpose – Various Sizes)803164037O‑ring assortment for hydraulic fittings
Composite Gasket (Q/SC1294‑2000 Hard Gasket)803164100Hard composite gasket
O‑ring (24.99×3.53 – 214N552‑90)803401122Standard O‑ring for port fittings
O‑ring (37.69×3.53 – 222N552‑90)803401130Standard O‑ring for larger ports
O‑ring (56.74×3.53 – 228N552‑90)803401136Standard O‑ring for flange fittings
O‑ring (75.79×3.53 – 234N552‑90)803401142Standard O‑ring for manifold mounting
O‑ring (94.84×3.53 – 240N552‑90)803401148Standard O‑ring for large flanges
O‑ring (120.24×3.53 – 248N552‑90)803401156Large O‑ring for case housing
O‑ring (164.69×3.53 – 260N552‑90)803401168Extra‑large O‑ring for tank access covers
O‑ring (26×2.0 – 573N552‑90)803401366Small O‑ring for pilot lines
Hydraulic Oil (ISO VG 46 – 20L / 200L)860115450Genuine XCMG hydraulic oil
Axle Gear Oil (GL‑5 85W‑140 – 20L)860115453Genuine XCMG axle gear oil
NLGI #2 Lithium Grease (400g Cartridge)860115451General purpose grease (pins, U‑joints, bearings)
Threadlocker (Medium Strength – Loctite 243 / Equivalent)For pump mounting bolts and fasteners
Anti‑Seize Compound (High Temperature)For exhaust manifold studs and pump shaft splines
Gasket Sealant (Anaerobic Flange Sealant)860115452For flange sealing during assembly
Hydraulic Pressure Test Kit (Gauge + Hose + Fittings)For diagnostic pressure checks
Pump Service / Repair Seal Kit (Complete)804024749Full seal and gasket kit for pump rebuild (contact XCMG for specific kit)
Pump Piston Set (Replacement)804024750Set of 9 replacement pistons (example – verify with pump model)
Pump Cylinder Block Assembly804024751Replacement cylinder block (barrel) with pistons
Pump Valve Plate (Port Plate)804024752Replacement valve plate (front or rear)
Pump Swash Plate (Cradle)804024753Replacement swash plate (variable angle control)
Pump Shaft (Drive / Input Shaft)804024754Replacement drive shaft (splined)
Pump Control Regulator (LS / PC Valve)804024755Load sensing or pressure compensator control valve
Pump Case Drain Filter (If externally mounted)803100042Low‑pressure case drain filter
Torque Wrench (0 – 300 Nm Range)For fastener tightening (pump mounting bolts)
Multimeter (Voltage / Continuity Tester)For electrical diagnostic (solenoid valves, sensors)
Service Manual (Hydraulic System Section)Refer to XCMG workshop manual for specific loader model
Parts Catalog (Illustrated – Pump Section)For exploded view and parts identification


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Product Detail

XCMG 804024740 – Plunger Pump (Hydraulic Axial Piston Pump) for Wheel Loaders

The XCMG 804024740 is a genuine high-pressure axial piston pump (often referred to as a plunger pump or main hydraulic pump) specifically designed for the main hydraulic system of XCMG wheel loaders. As the heart of the loader‘s hydraulic system, this variable displacement pump draws oil from the hydraulic tank and delivers high-pressure flow to the main control valve, which then directs fluid to critical functions including boom lift, bucket tilt, steering, brake charging, and auxiliary hydraulic circuits. Manufactured from high-strength cast iron and forged steel, precision‑machined with hardened cylinder blocks, pistons, and valve plates, the 804024740 is engineered for high volumetric efficiency, low pulsation, and reliable performance under the heavy shock loads and continuous duty cycles encountered in construction, quarrying, mining, and material handling applications.

  • XCMG ZL50G, ZL50GN, ZL50GV Wheel Loaders
  • XCMG LW500K, LW500FN, LW600K, LW800K Wheel Loaders
  • XCMG XC958, XC968, XC9 Series Wheel Loaders
  • XCMG LW300K, LW300KN, LW350KN Wheel Loaders (verify displacement and mounting)
  • Other XCMG wheel loaders equipped with variable displacement axial piston pump systems
CategoryPart NumberDescription / Original Number
Main Component804024740Plunger pump (axial piston pump / main hydraulic pump)
Pump (Alternate / Series)804024741Plunger pump – alternate variant (verify displacement and control type)
Pump (Tandem – Second Section)804024742Second pump section (if original is a tandem pump configuration)
Pump (Tandem – Complete Assembly)804024743Complete tandem pump assembly (both sections)
Steering Pump (Gear Type)803072822Steering hydraulic pump (separate gear pump – used with axial piston main pump systems)
Pilot Pump (Gear – if separate)803004063Pilot gear pump (supplies pilot control circuit)
Pump Drive Adapter / Bell Housing804024744Pump mounting adapter (transmission / torque converter to pump)
Pump Drive Coupling (Flexible)804024745Flexible coupling (engine/transmission PTO to pump shaft)
Coupling Rubber Element (Spider)804024746Rubber spider insert for flexible coupling
Pump Mounting Bolt Kit279500128High-strength hex bolt set (M12×35 or M14×40 – grade 10.9)
Lock Washer (Pump Mounting)275300096Spring lock washer (M12 / M14)
Mounting O‑ring (Pump Flange)803164037O‑ring (for SAE flange mount – size dependent on pump model)
Suction Hose (Tank to Pump – Low Pressure)860115388Low-pressure hydraulic suction hose
Pressure Hose (Pump to Main Valve – High Pressure)860115389High-pressure delivery hose
High‑Pressure Steel Tube (Pump to Valve)252300477Distributor valve inlet steel pipe (rigid hydraulic supply line)
Case Drain Hose (Return to Tank)860115390Low-pressure case drain return hose
Banjo Bolt (Pressure Port)860167280Hollow bolt for banjo connection (if banjo fitting is used)
Copper Washer (Banjo Seal – Pack of 10)803164120Sealing washer for banjo bolts
Hydraulic Tank (Reservoir)803200100Main hydraulic oil reservoir
Suction Strainer (In‑tank)803100040Suction strainer / filter (inside hydraulic tank)
Return Filter Assembly (Spin‑on)803100039Return line filter assembly
Return Filter Element (10 micron)803100041Replacement filter element
Pilot Return Filter (if separate)803100042Pilot circuit return filter
Hydraulic Oil Cooler803107100Hydraulic oil cooler assembly (air or water cooled)
Oil Cooler Bypass Valve803107101Thermal bypass valve (cold start bypass)
Main Control Valve (Distributor)803104500Pilot‑operated main hydraulic valve assembly
Inlet Section (Main Control Valve)803104501Inlet cover with pump port
Working Section (Boom Spool)803104502Boom spool section
Working Section (Bucket Spool)803104503Bucket spool / auxiliary section
Outlet Section (Return Cover)803104504Outlet cover (return to tank)
Main System Relief Valve (Cartridge)803104505Main pressure relief valve
Port Relief Valve (Boom Circuit)803104506Boom circuit relief / cushion valve
Port Relief Valve (Bucket Circuit)803104507Bucket circuit relief valve
Load Holding / Anti‑Drop Valve (Boom)803104508Counterbalance valve for boom cylinders
Steering Priority Valve (Flow Divider)803104200Flow divider (steering priority – sends oil to steering circuit first)
Pilot Control Valve (Joystick Base)860633853Proportional pilot valve (under cab floor)
Joystick Handle (Pilot Control)860633850Electro‑hydraulic joystick with thumb rollers and switches
Pilot Accumulator (Emergency Lower)803089849Pilot pressure accumulator (emergency boom lower)
Pilot Hose (Boom Raise)860115390Pilot signal hose – boom raise
Pilot Hose (Boom Lower)860115391Pilot signal hose – boom lower
Pilot Hose (Bucket Dump)860115392Pilot signal hose – bucket dump
Pilot Hose (Bucket Curl)860115393Pilot signal hose – bucket curl
Pilot Filter (Return Line)803100042Pilot circuit return filter
Boom Lift Cylinder (Left)803081218Left boom cylinder
Boom Lift Cylinder (Right)803081219Right boom cylinder
Boom Cylinder Seal Repair Kit803081218SKSeal kit (piston seals, rod seal, wiper, O‑rings) – left / right
Bucket Tilt Cylinder803081220Bucket cylinder
Bucket Cylinder Seal Repair Kit803081220SKSeal kit for bucket cylinder
Steering Cylinder (Left)803081210Left steering cylinder
Steering Cylinder (Right)803081211Right steering cylinder
Steering Gear (Orbital Control Unit)803089848Full‑hydraulic steering control unit
Steering Cylinder Pin (Mounting)275200145Pivot pin for steering cylinder
Steering Cylinder Pin Retaining Nut275200118Self‑locking nut for steering cylinder pin
Brake Master Cylinder860167266Brake master cylinder assembly
Brake Booster (Air / Hydraulic)860167268Air‑over‑hydraulic brake booster
Brake Accumulator803089849Emergency brake hydraulic accumulator
Brake Caliper Seal Kit860167251Brake caliper repair seal kit
Brake Caliper (Front Left)860167252Front left brake caliper
Brake Caliper (Front Right)860167253Front right brake caliper
Brake Caliper (Rear Left)860167254Rear left brake caliper
Brake Caliper (Rear Right)860167255Rear right brake caliper
Brake Pad Set (Front)860167256Friction pad set – front axle
Brake Pad Set (Rear)860167257Friction pad set – rear axle
Brake Disc (Rotor – Front)860167259Ventilated brake disc – front
Brake Disc (Rotor – Rear)860167260Ventilated brake disc – rear
Brake Hose (Flexible – Front)860115388Flexible brake hose (front axle)
Brake Hose (Flexible – Rear)860115389Flexible brake hose (rear axle)
Brake Fluid (DOT 4 – 1L / 5L)860115450Genuine XCMG brake fluid
Parking Brake Caliper (Transmission Output)860167272Spring‑applied parking brake caliper
Parking Brake Switch (Cab)803604013Dash parking brake warning switch
Front Axle Assembly (Complete)250300731Front drive axle
Rear Axle Assembly (Complete)250300732Rear drive axle
Front Axle Input Flange (Pinion Yoke)251900342Pinion flange (drive shaft to axle connection)
Axle Pinion Oil Seal (Double‑Lip)860106167Pinion seal
Axle Shaft (Left Front)251500307Left front axle shaft
Axle Shaft (Right Front)251500308Right front axle shaft
Axle Shaft (Left Rear)251500309Left rear axle shaft
Axle Shaft (Right Rear)251500310Right rear axle shaft
Differential Assembly (Front)275102500Front differential carrier assembly
Differential Assembly (Rear)275102501Rear differential carrier
Half Shaft Gear (Differential Side Gear)275102466Differential side gear (mates with axle shaft)
Sun Gear (Planetary Final Drive)275100138Sun gear shaft
Planet Gear (Planetary Final Drive – Set of 3)250200646Planet gear
Wheel Hub (Front)252000421Front wheel hub assembly
Wheel Hub (Rear)252000422Rear wheel hub assembly
Wheel Hub Tapered Roller Bearing (Inner)271400216Inner wheel bearing
Wheel Hub Tapered Roller Bearing (Outer)271400218Outer wheel bearing
Wheel Hub Oil Seal (Inner)272200085Wheel hub seal (keeps gear oil in hub)
Wheel Flange251900342Wheel mounting flange (bolted to hub)
Wheel Stud Bolt279500128M22×1.5 wheel stud (set of 10)
Wheel Nut (Conical Seat)250200664Hex wheel nut for wheel studs
Transmission Assembly (Powershift)Transmission (model dependent on loader)
Torque ConverterYJ315 seriesTorque converter assembly
Transmission Oil Pump803009979Gear pump mounted on transmission
Transmission Filter (Spin‑on)803100039Transmission return line filter
Transmission Oil CoolerTransmission oil cooler circuit
Front Transmission Shaft (Propeller Shaft)251805363Front drive shaft (transmission to front axle)
Rear Transmission Shaft251805364Rear drive shaft (transmission to rear axle)
U‑Joint Cross & Bearing Kit (Drive Shaft)251805370Universal joint repair kit
Engine AssemblyDiesel engine (Weichai / Cummins / Deutz – loader dependent)
Engine Water Pump860148431Engine coolant pump
Radiator Water Tank (Engine Cooling)860148427Engine cooling radiator assembly
Radiator Cap (Pressure – 0.5–0.9 bar)860148428Pressure radiator cap
Radiator Hose (Upper)860115430Upper coolant hose (engine to radiator)
Radiator Hose (Lower)860115431Lower coolant hose (radiator to water pump)
Coolant Expansion Tank (Overflow / Degas)860148429Coolant reservoir / expansion bottle
Cooling Fan (Suction)860148434Engine cooling fan (plastic or metal)
Fan Shroud (Air Guide)860148435Radiator fan shroud
Fan Belt (Serpentine)860148437Drive belt (alternator / fan / water pump)
Fan Belt Tensioner (Automatic)860148438Automatic belt tensioner
Hydraulic Oil Cooler (Stacked with Radiator)860148440Hydraulic oil cooler (integrated with radiator core)
Charge Air Cooler (CAC / Intercooler)860148441Turbocharger intercooler
Alternator (28V / 120A)Brushless alternator
Starter Motor (24V)Heavy‑duty starter
Battery (12V / 24V system)Two 12V batteries (connected in series)
Battery Cable (Positive – Heavy Duty)Red battery cable (35 mm² or 50 mm²)
Battery Cable (Negative – Chassis Ground)Black battery ground cable
Battery Isolator Switch (Master Disconnect)252911393Master power disconnect switch
Fuse Kit (5A – 30A – Assorted Blade Fuses)803682279 – 803682283Blade fuses (5A, 10A, 15A, 20A, 30A)
Relay (General Purpose – 24V, 4‑pin / 5‑pin)803604013ISO mini relay
Control Button (Horn / Vibration / Dashboard)803604621Dash push button
Harness Connector (Deutsch – Receptacle / Pin)803399778Electrical connector (Deutsch DT series)
Coolant Temperature SensorWDG1371Water temperature sender
Dashboard Display / Instrument Cluster803604622LCD or analog display (speed, temp, fuel, warnings)
Headlight Assembly (Left – LED Work Light)860134405Left front LED work light
Headlight Assembly (Right – LED Work Light)860134406Right front LED work light
Headlight Cover (Left – Lens / Housing Cover)252911337Left headlight cover / lens cover
Headlight Cover (Right)252911338Right headlight cover
Horn (Electric – High Tone)803688413Warning horn – high frequency
Horn (Electric – Low Tone)803688414Warning horn – low frequency
Horn Relay803604013Relay for horn circuit
Reverse Alarm (Backup Buzzer – 107 dB)803688433Audible reverse alarm
Grease Fitting (Straight – Lubrication Nipple, M10×1)803164200Standard grease nipple
Grease Fitting (90° – Angled, M10×1)80316420190° angled grease nipple
Grease Fitting Cap (Rubber Dust Cover)803164202Protective cap for grease nipple
O‑ring (General Purpose – Various Sizes)803164037O‑ring assortment for hydraulic fittings
Composite Gasket (Q/SC1294‑2000 Hard Gasket)803164100Hard composite gasket
O‑ring (24.99×3.53 – 214N552‑90)803401122Standard O‑ring for port fittings
O‑ring (37.69×3.53 – 222N552‑90)803401130Standard O‑ring for larger ports
O‑ring (56.74×3.53 – 228N552‑90)803401136Standard O‑ring for flange fittings
O‑ring (75.79×3.53 – 234N552‑90)803401142Standard O‑ring for manifold mounting
O‑ring (94.84×3.53 – 240N552‑90)803401148Standard O‑ring for large flanges
O‑ring (120.24×3.53 – 248N552‑90)803401156Large O‑ring for case housing
O‑ring (164.69×3.53 – 260N552‑90)803401168Extra‑large O‑ring for tank access covers
O‑ring (26×2.0 – 573N552‑90)803401366Small O‑ring for pilot lines
Hydraulic Oil (ISO VG 46 – 20L / 200L)860115450Genuine XCMG hydraulic oil
Axle Gear Oil (GL‑5 85W‑140 – 20L)860115453Genuine XCMG axle gear oil
NLGI #2 Lithium Grease (400g Cartridge)860115451General purpose grease (pins, U‑joints, bearings)
Threadlocker (Medium Strength – Loctite 243 / Equivalent)For pump mounting bolts and fasteners
Anti‑Seize Compound (High Temperature)For exhaust manifold studs and pump shaft splines
Gasket Sealant (Anaerobic Flange Sealant)860115452For flange sealing during assembly
Hydraulic Pressure Test Kit (Gauge + Hose + Fittings)For diagnostic pressure checks
Pump Service / Repair Seal Kit (Complete)804024749Full seal and gasket kit for pump rebuild (contact XCMG for specific kit)
Pump Piston Set (Replacement)804024750Set of 9 replacement pistons (example – verify with pump model)
Pump Cylinder Block Assembly804024751Replacement cylinder block (barrel) with pistons
Pump Valve Plate (Port Plate)804024752Replacement valve plate (front or rear)
Pump Swash Plate (Cradle)804024753Replacement swash plate (variable angle control)
Pump Shaft (Drive / Input Shaft)804024754Replacement drive shaft (splined)
Pump Control Regulator (LS / PC Valve)804024755Load sensing or pressure compensator control valve
Pump Case Drain Filter (If externally mounted)803100042Low‑pressure case drain filter
Torque Wrench (0 – 300 Nm Range)For fastener tightening (pump mounting bolts)
Multimeter (Voltage / Continuity Tester)For electrical diagnostic (solenoid valves, sensors)
Service Manual (Hydraulic System Section)Refer to XCMG workshop manual for specific loader model
Parts Catalog (Illustrated – Pump Section)For exploded view and parts identification


Plunger Pump 804024740 XCMG Wheel loader
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E-mail:            asher@wuchenjialianspareparts.com

Tel:                +86-172 696 29279 

Address:          No. 667, Zhujiang Road, Xuejiadao 

                      Street, Huangdao District, Qingdao,

                      Qingdao Area, China (Shandong) Pilot

                      Free Trade Zone

Contact us

WhatsApp:+86-172 696 29279

WeChat:172 6962 9279

E-mail:asher@wuchenjialianspareparts.com

Tel:+86-172 696 29279

Address:No. 667, Zhujiang Road, Xuejiadao 

Street, Huangdao District, Qingdao, Qingdao Area, China (Shandong) Pilot Free Trade Zone

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© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.


© Copyright - 2026 Qingdao Wuchen Jialian International Trade Co., Ltd . All Rights Reserved.

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